The smell of bread being baked cannot bring the memory of the taste of the bread to the mind unless a person’s mind recognises the smell of the bread. Once we have tasted or smelled something that is ‘pleasant’ or ‘unpleasant’ the mind can automatically recall the thoughts and feelings of that original experience. This is because of the phenomenon of ‘sensory memory’. We have sensory memory of our previous experiences. What determines what we feel when we smell the bread baking will be influenced by how we previously felt when we smelled or tasted bread.